Leakage-proof explosion-proof safety valve

Abstract

The utility model discloses a leakproof explosion relief valve, which mainly comprises a main body structure, a limit ring, an elastic component and an adjusting component, the main body structure comprises a valve body, a connecting pipe fixedly communicated with the bottom end of the valve body, exhaust holes arranged on the peripheral side of the valve body in an annular array, and a housing fixedly connected with the top of the valve body, the limiting ring is fixedly connected with the inner wall of the valve body and located below the exhaust hole, the elastic assembly is arranged in the valve body, the top end of the elastic assembly is fixedly connected with the inner top wall of the housing, and the adjusting assembly is connected with the housing and the elastic assembly. The explosion-proof exhaust device is easy to operate, capable of adjusting the triggering pressure intensity of explosion-proof exhaust, flexible to use and capable of meeting the actual use requirements of people.

Description

Technical Field

[0001] The utility model relates to the technical field of safety valves, in particular to a leak-proof and explosion-proof safety valve. Background Art

[0002] A safety valve is in a normally closed state under the action of external force on the opening and closing member. When the medium pressure in the equipment or pipeline rises above the specified value, it prevents the medium pressure in the pipeline or equipment from exceeding the specified value by discharging the medium to the outside of the system. The safety valve belongs to the category of automatic valves and is mainly used on boilers, pressure vessels and pipelines to control the pressure not to exceed the specified value, playing an important protective role in personal safety and equipment operation.

[0003] Most of the existing explosion-proof and leak-proof safety valves have fixed structures, so the triggering pressure intensity of explosion-proof exhaust is mostly fixed and cannot be adjusted according to actual use requirements, making the use not flexible enough. Summary of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and title of the specification of this application, to avoid obscuring the purpose of this part, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] To solve the above technical problems, the utility model provides the following technical solution: a leak-proof and explosion-proof safety valve mainly includes a main body structure, a limiting ring, an elastic component and an adjusting component. The main body structure includes a valve body, a connecting pipe fixedly connected to the bottom end of the valve body, exhaust holes arranged in a circumferential array on the periphery of the valve body, and a cover shell fixedly connected to the top of the valve body. The limiting ring is fixedly connected to the inner wall of the valve body and is located below the exhaust holes. The elastic component is arranged inside the valve body, and the top end of the elastic component is fixedly connected to the inner top wall of the cover shell. The adjusting component is connected to the cover shell and the elastic component.

[0006] As a preferred scheme of the leak-proof and explosion-proof safety valve of the utility model, wherein: a fixed ring is fixedly sleeved outside the valve body, the cover shell is nestedly connected to the top of the valve body, and the bottom of the cover shell is fixedly connected to the fixed ring through a plurality of bolts.

[0007] As a preferred embodiment of the leak-proof and explosion-proof safety valve of the present utility model, the elastic component includes a fixed sleeve fixedly connected to the inner top wall of the housing, a moving rod slidably fitted inside the fixed sleeve, a mounting plate fixedly connected to the bottom end of the moving rod, a movable block fixedly connected to the bottom of the mounting plate, an adjusting ring slidably sleeved outside the fixed sleeve, and a first spring fixedly connected between the adjusting ring and the mounting plate. The first spring is movably sleeved outside the moving rod and the fixed sleeve, and the top of the adjusting ring is fixedly connected to the bottom end of the adjusting component.

[0008] As a preferred embodiment of the leak-proof and explosion-proof safety valve of the present utility model, the bottom of the movable block is movably abutted against the top of the limiting ring. The movable block is slidably fitted inside the valve body, and in the non-exhaust state, the movable block blocks the inner end of the exhaust hole.

[0009] As a preferred embodiment of the leak-proof and explosion-proof safety valve of the present utility model, the adjusting component includes a pair of lifting rods fixedly connected to the top of the adjusting ring and a vertical rod fixedly connected to the top of the housing. The pair of lifting rods are symmetrically arranged on the left and right sides of the fixed sleeve. The top ends of the pair of lifting rods slide out of the housing and are fixedly connected to the same cross bar. The upper and lower sides of the cross bar are provided with communicating chutes. The chutes are slidably sleeved outside the lifting rods. A fixing member for fixedly connecting the cross bar and the lifting rods together is fixedly connected to the front side of the cross bar.

[0010] As a preferred embodiment of the leak-proof and explosion-proof safety valve of the present utility model, the fixing member includes a fixing frame fixedly connected to the cross bar. A plug rod is slidably penetrated through the fixing frame. One end of the plug rod is connected to the lifting rod and the cross bar, and the other end is fixedly connected to a mounting seat. A second spring is fixedly connected between the mounting seat and the fixing frame. The second spring is movably sleeved outside the plug rod.

[0011] As a preferred embodiment of the leak-proof and explosion-proof safety valve of the present utility model, a fixing hole communicating with the chute is provided on the front side of the plug rod. A plurality of movable holes are linearly arranged on the lifting rod. The plug rod is adaptively inserted into the fixing hole and one of the movable holes.

[0012] Advantages of the present utility model:

[0013] In the present utility model, through the combined use of the moving rod, the first spring, the movable block, the exhaust hole, etc., an explosion-proof exhaust effect can be achieved. Through the combined use of the lifting rod, the adjusting ring, the cross bar, the vertical rod, the fixing member, etc., the resilience of the first spring can be adjusted, and thus the triggering pressure intensity of the explosion-proof exhaust can be adjusted. The use is flexible and can meet the actual use requirements of people. Description of the Drawings

[0014] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the attached drawings required for the description of the embodiments. Obviously, the attached drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other attached drawings can also be obtained based on these drawings. Among them:

[0015] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0016] Figure 2 It is a schematic diagram of the sectional structure of the main body structure of the present utility model.

[0017] Figure 3 It is a schematic diagram of the structure of the elastic component of the present utility model.

[0018] Figure 4 It is a schematic diagram of the structure of the adjustment component of the present utility model.

[0019] Figure 5 It is a schematic diagram of the partial structure of the adjustment component of the present utility model.

[0020] Figure 6 It is a schematic diagram of the structure of the fixing part of the present utility model.

[0021] In the figure: 100, main body structure; 101, valve body; 102, connecting pipe; 103, exhaust hole; 104, housing; 105, fixing ring; 200, limiting ring; 300, elastic component; 301, fixing sleeve; 302, moving rod; 303, mounting plate; 304, movable block; 305, adjusting ring; 306, first spring; 400, adjusting component; 401, lifting rod; 402, cross bar; 403, vertical rod; 404, sliding groove; 405, fixing part; 405-1, fixing frame; 405-2, inserting rod; 405-3, mounting seat; 405-4, second spring; 406, fixing hole; 407, movable hole. Specific embodiments

[0022] To make the above-mentioned objects, features and advantages of the present utility model more obvious and understandable, the following will make a detailed description of the specific embodiments of the present utility model in conjunction with the attached drawings of the specification.

[0023] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0024] Secondly, the so-called "one embodiment" or "embodiment" herein refers to specific features, structures or characteristics that may be included in at least one implementation manner of the present utility model. The "in one embodiment" that appears in different places in this specification does not all refer to the same embodiment, nor is it a separate or selectively mutually exclusive embodiment with other embodiments.

[0025] Thirdly, the present utility model is described in detail in conjunction with schematic diagrams. When detailing the embodiments of the present utility model, for the convenience of explanation, the cross-sectional views showing the device structure will be locally enlarged out of the general proportion, and the schematic diagrams are only examples and should not limit the protection scope of the present utility model herein. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.

[0026] Embodiment 1

[0027] Referring to Figure 1-6 , for the first embodiment of the present utility model, a leak-proof and explosion-proof safety valve is provided, which mainly includes:

[0028] A main body structure 100, the main body structure 100 includes a valve body 101, a connecting pipe 102 fixedly communicated with the bottom end of the valve body 101, exhaust holes 103 arranged in a circumferential array on the periphery of the valve body 101, and a cover shell 104 fixedly connected to the top of the valve body 101. Among them, the outside of the connecting pipe 102 is provided with threads for threaded connection with equipment such as boilers;

[0029] A limiting ring 200, the limiting ring 200 is fixedly connected to the inner wall of the valve body 101, and the limiting ring 200 is located below the exhaust holes 103 for limiting the movable block 304, so that in the non-exhaust state, the movable block 304 can block the inner ends of the exhaust holes 103;

[0030] An elastic component 300, the elastic component 300 is arranged inside the valve body 101, and the top end of the elastic component 300 is fixedly connected to the inner top wall of the cover shell 104;

[0031] An adjusting component 400, the adjusting component 400 is connected to the cover shell 104 and the elastic component 300.

[0032] Specifically, a fixing ring 105 is fixedly sleeved outside the valve body 101, the cover shell 104 is nested with the top of the valve body 101, and the bottom of the cover shell 104 and the fixing ring 105 are fixedly connected by a plurality of bolts, which is convenient for disassembly and assembly.

[0033] Specifically, the elastic component 300 includes a fixed sleeve 301 fixedly connected to the inner top wall of the housing 104 by bolts, a moving rod 302 slidably fitted inside the fixed sleeve 301, a mounting plate 303 fixedly connected to the bottom end of the moving rod 302, a movable block 304 fixedly connected to the bottom of the mounting plate 303, an adjusting ring 305 slidably sleeved outside the fixed sleeve 301, and a first spring 306 fixedly connected between the adjusting ring 305 and the mounting plate 303. The first spring 306 is movably sleeved outside the moving rod 302 and the fixed sleeve 301, and the top of the adjusting ring 305 is fixedly connected to the bottom end of the adjusting component 400;

[0034] The bottom of the movable block 304 is movably abutted against the top of the limiting ring 200. The movable block 304 is slidably fitted inside the valve body 101, and in the non-exhaust state, the movable block 304 blocks the inner end of the exhaust hole 103.

[0035] During use, the safety valve is installed together with equipment to be protected such as a boiler through the connecting pipe 102. When the air pressure in the equipment such as the boiler increases sharply, the air pressure can enter the valve body 101 through the connecting pipe 102. The movable block 304 moves upward along the inside of the valve body 101 under the push of the air pressure. The movable block 304 pushes the mounting plate 303 upward, and the mounting plate 303 compresses the first spring 306. The air pressure is discharged through the exhaust hole 103, so that an explosion-proof effect can be achieved.

[0036] Specifically, the adjusting component 400 includes a pair of lifting rods 401 fixedly connected to the top of the adjusting ring 305 and a vertical rod 403 fixedly connected to the top of the housing 104. The pair of lifting rods 401 are symmetrically arranged on the left and right sides of the fixed sleeve 301. The top ends of the pair of lifting rods 401 slide out of the housing 104 and are fixedly connected to the same cross bar 402. A mutually communicating chute 404 is formed on the upper and lower sides of the cross bar 402. The chute 404 is slidably sleeved outside the lifting rod 401. A fixing member 405 for fixedly connecting the cross bar 402 and the lifting rod 401 together is fixedly connected to the front side of the cross bar 402.

[0037] Furthermore, the fixing member 405 includes a fixing frame 405-1 fixedly connected to the cross bar 402. The fixing frame 405-1 has an integrally formed U-shaped structure. A plug rod 405-2 is slidably penetrated through the fixing frame 405-1. One end of the plug rod 405-2 is connected to the lifting rod 401 and the cross bar 402, and the other end is fixedly connected to a mounting seat 405-3. A second spring 405-4 is fixedly connected between the mounting seat 405-3 and the fixing frame 405-1. The second spring 405-4 is movably sleeved outside the plug rod 405-2;

[0038] A fixing hole 406 communicating with the sliding groove 404 is formed in the front side of the insertion rod 405-2. A plurality of moving holes 407 are linearly arrayed on the lifting rod 401. The insertion rod 405-2 is adaptively inserted into the fixing hole 406 and one of the moving holes 407. Through the insertion action of the insertion rod 405-2 with the fixing hole 406 and the moving hole 407, the cross rod 402 and the vertical rod 403 can be fixedly connected together, so that the lifting rod 401 and the adjusting ring 305 can be fixed.

[0039] When it is necessary to adjust the triggering pressure intensity of the explosion-proof exhaust, first pull the insertion rod 405-2 backward through the mounting seat 405-3. The second spring 405-4 is stretched, and the insertion rod 405-2 is withdrawn from the fixing hole 406 and the moving hole 407, releasing the fixation of the cross rod 402. After the release, drive the pair of lifting rods 401 to move up or down through the cross rod 402. The pair of lifting rods 401 drive the adjusting ring 305 to move up or down synchronously. When the adjusting ring 305 moves downward, the length of the first spring 306 becomes smaller, so that the resilience of the first spring 306 becomes larger, and thus the triggering pressure intensity of the explosion-proof exhaust can be increased. When the adjusting ring 305 moves upward, the length of the first spring 306 becomes larger, but the first spring 306 is still in a compressed state, so that the resilience of the first spring 306 becomes smaller, and thus the triggering pressure intensity of the explosion-proof exhaust can be reduced. It is flexible to use and can meet the actual use requirements of people. After the adjustment is completed, release the mounting seat 405-3. The insertion rod 405-2 is inserted into the fixing hole 406 under the resilience of the second spring 405-4 and is adaptively inserted into the corresponding moving hole 407 through the fixing hole 406 to complete the fixation of the height of the adjusting ring 305. The overall operation is simple and convenient for adjusting the triggering pressure intensity of the explosion-proof exhaust.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A leak-proof and explosion-proof safety valve, characterized in that, Comprising: A main body structure (100), the main body structure (100) includes a valve body (101), a connecting pipe (102) fixedly connected to the bottom end of the valve body (101), exhaust holes (103) arranged in an annular array on the circumferential side of the valve body (101), and a cover (104) fixedly connected to the top of the valve body (101); A limiting ring (200), the limiting ring (200) is fixedly connected to the inner wall of the valve body (101), and the limiting ring (200) is located below the exhaust holes (103); An elastic component (300), the elastic component (300) is arranged inside the valve body (101), and the top end of the elastic component (300) is fixedly connected to the inner top wall of the cover (104); An adjusting component (400), the adjusting component (400) is connected to the cover (104) and the elastic component (300).

2. The leak-proof and explosion-proof safety valve according to claim 1, wherein: A fixing ring (105) is fixedly sleeved outside the valve body (101), the cover (104) is nestedly connected to the top of the valve body (101), and the bottom of the cover (104) is fixedly connected to the fixing ring (105) by a plurality of bolts.

3. The leak-proof and explosion-proof safety valve according to claim 1, wherein: The elastic component (300) includes a fixing sleeve (301) fixedly connected to the inner top wall of the cover (104), a moving rod (302) slidably fitted inside the fixing sleeve (301), a mounting plate (303) fixedly connected to the bottom end of the moving rod (302), a movable block (304) fixedly connected to the bottom of the mounting plate (303), an adjusting ring (305) slidably sleeved outside the fixing sleeve (301), and a first spring (306) fixedly connected between the adjusting ring (305) and the mounting plate (303). The first spring (306) is movably sleeved outside the moving rod (302) and the fixing sleeve (301), and the top of the adjusting ring (305) is fixedly connected to the bottom end of the adjusting component (400).

4. The leak-proof and explosion-proof safety valve according to claim 3, characterized in that: The bottom of the movable block (304) is movably abutted against the top of the limiting ring (200), the movable block (304) is slidably fitted inside the valve body (101), and in the non-exhaust state, the movable block (304) blocks the inner end of the exhaust hole (103).

5. The leak-proof and explosion-proof safety valve according to claim 3, wherein: The adjusting component (400) includes a pair of lifting rods (401) fixedly connected to the top of the adjusting ring (305) and a vertical rod (403) fixedly connected to the top of the cover (104). The pair of lifting rods (401) are symmetrically arranged on the left and right sides of the fixing sleeve (301). The top ends of the pair of lifting rods (401) slide out of the cover (104) and are fixedly connected to the same cross bar (402). The upper and lower sides of the cross bar (402) are provided with mutually communicating chutes (404). The chutes (404) are slidably sleeved outside the lifting rods (401). A fixing member (405) for fixedly connecting the cross bar (402) and the lifting rods (401) together is fixedly connected to the front side of the cross bar (402).

6. The leak-proof and explosion-proof safety valve according to claim 5, characterized in that: The fixing member (405) includes a fixing frame (405-1) fixedly connected to the cross bar (402). A plug rod (405-2) is slidably penetrated through the fixing frame (405-1). One end of the plug rod (405-2) is connected to the lifting rod (401) and the cross bar (402), and the other end is fixedly connected to a mounting seat (405-3). A second spring (405-4) is fixedly connected between the mounting seat (405-3) and the fixing frame (405-1), and the second spring (405-4) is movably sleeved outside the plug rod (405-2).

7. The leak-proof and explosion-proof safety valve according to claim 6, wherein: A fixing hole (406) communicating with the chute (404) is formed on the front side of the plug rod (405-2). A plurality of movable holes (407) are linearly arrayed on the lifting rod (401), and the plug rod (405-2) is adaptively inserted into the fixing hole (406) and one of the movable holes (407).

Images